Enum ContentType 

#[non_exhaustive]
pub enum ContentType {
    Any,
    Raw,
    Json,
    Avro,
    Protobuf,
    Msgpack,
    Cbor,
    Bson,
    Arrow,
    Ref,
}

The wire codec tag stamped on agdx.ct.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Any

“Best-effort decode”: the projector tries JSON first, else raw. Useful when a projection is content-agnostic. Lands on the wire as the any variant so consumers can distinguish “unknown” from “raw”.

Raw

Json

Avro

Protobuf

Msgpack

Cbor

Bson

Arrow

Ref

The body is a CBOR BodyRef capsule pointing at content stored elsewhere (object storage, KV, another topic), not the content itself: the claim-check form for payloads too large or sensitive to inline.

Implementations

impl ContentType

pub const fn is_raw(&self) -> bool

Whether this is the default Raw codec (omitted on the wire when a field defaults to it).

pub const fn code(self) -> u8

The compact u8 wire code stamped as the agdx.ct header value. A fixed dictionary shared with LaserData Cloud and its display layers (and the shape planned for Iggy’s native reserved content-type field): raw=0, json=1, msgpack=2, cbor=3, bson=4, avro=5, protobuf=6, arrow=7, ref=8 (claim-check body reference), any=255 (best-effort sentinel).

pub const fn from_code(code: u8) -> Option<Self>

Decode a compact agdx.ct code, or None for a code this build does not name. The codes are a growable dictionary, so a server MUST treat an unknown code as opaque (pass it through, decode the body best-effort) and never reject the record on it. A newer peer may stamp a code this build has not learned yet.

Trait Implementations

impl Clone for ContentType

fn clone(&self) -> ContentType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ContentType

impl Debug for ContentType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ContentType

fn default() -> ContentType

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ContentType

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ContentType

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for ContentType

impl FromStr for ContentType

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<ContentType, <Self as FromStr>::Err>

Parses a string s to return a value of this type.

impl PartialEq for ContentType

fn eq(&self, other: &ContentType) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ContentType

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ContentType

impl TryFrom<&str> for ContentType

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(s: &str) -> Result<ContentType, <Self as TryFrom<&str>>::Error>

Performs the conversion.

impl VariantArray for ContentType

const VARIANTS: &'static [Self]